CONTINUOUS INTERNET TELEMETRY24H DRIFT31,420 material changesacross 29,745 domains · 24h to ~50m agoSHIFT22 domains moved DNS from brainydns.com to koaladns.coma coordinated move · 24hNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,162 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,262 sites429 rate-limit / 403 bot-block, a posture signal

zztrc.edu.cn

Observed Aug 3, 2026, 08:12 UTC (17h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

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Not responding
Signed observation on record.
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zztrc.edu.cn actually stands on - every host below is a signed observation
zztrc.edu.cn
NS
dns2.zztrc.edu.cndns.zztrc.edu.cn
edu.cnanswers its DNS
MX
mxbiz2.qq.commxbiz1.qq.com
qq.comreceives its email

DNS Records

MX 2

  • 10mxbiz2.qq.com
  • 5mxbiz1.qq.com

TXT 1

  • v=spf1 include:spf.mail.qq.com ~all

NS 2

  • dns2.zztrc.edu.cn
  • dns.zztrc.edu.cn

SOA 1

  • ns.zztrc.edu.cn mail.zztrc.edu.cn

TLS Certificates (0)

None.

Subdomains (0)

None observed.

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

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Ed25519 Receipt

Receipt ID
rcpt_fa121cd483f75186
Output Hash
5f7d246eff21a378c519bb79a59b0464479a0c195fc1c0bd9cd3e7abd1b688e7
Signature
ed25519:37e7a78cd9c0028bf677215287b5e1024ca6cad621ecad931e06d1968b778bc185a18377b3825d4a752a27783985f0ad7a8c90c6355b449ea33a77b590095a08
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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